Patent application number | Description | Published |
20130147193 | METHOD FOR OPERATING A MACHINE LOCATED IN CHOPPY WATERS - A method for operating a machine located in choppy waters, in particular a wave energy converter, for converting energy from a wave movement of a fluid into another form of energy includes determining measurement variables at a first, relatively early time, and calculating a variable characterizing a wave movement expected at a second, later time on the basis of the determined measurement variables. | 06-13-2013 |
20130334816 | Method for Operating a Wave Energy Converter for Converting Energy from a Wave Motion of a Fluid into another Form of Energy - A method for operating a wave energy converter for converting energy from a wave motion of a fluid into another form of energy, wherein the wave energy converter has a lever arm, which is mounted so as to be rotatable about a rotor rotational axis and bears a coupling body and an energy converter which is coupled to the rotatably mounted lever arm, includes controlling a rotational speed of the lever arm about the rotor rotational axis such that, averaged over time over one revolution, it corresponds to an orbital speed of the wave motion, and controlling the rotational speed of the lever arm such that an angle between a tangential speed of the coupling body and of a local flow rate of the wave motion about the coupling body deviates at maximum by a predefinable value of 90°. | 12-19-2013 |
20130334821 | Wave Energy Converter, and Associated Operating Method and Control Device - A wave energy converter comprises a rotor, which is designed to convert a wave movement of a body of water, in which the wave energy converter is arranged, into a rotational movement of the rotor, wherein a mean density of at least one rotating component of the rotor can be adjusted and/or is lower than the mean density of the fluid surrounding the rotor in the body of water. The disclosure likewise relates to a corresponding control device and an operating method. | 12-19-2013 |
20140123641 | WAVE ENERGY CONVERTER COMPRISING VORTEX TRAIL-GUIDING DEVICE AND METHOD FOR CONVERTING WAVE ENERGY - A wave energy converter includes at least one rotor which is configured to convert a wave motion of an agitated body of water into a rotational motion of the at least one rotor. The at least one rotor has at least two elongate lift profiles which are each connected by one end to a rotor base. The lift profiles are each connected in pairs to one another via at least one vortex trail-guiding device in a region of their free ends, not connected to the rotor base, of the lift profiles. | 05-08-2014 |
Patent application number | Description | Published |
20110260670 | ELECTRIC MOTOR ASSEMBLY, METHOD FOR OPERATING AN ELECTRIC MOTOR, AND MOTOR CONTROL DEVICE - The invention relates to an electric motor assembly, particularly for driving a fan for an engine cooling system and/or an air conditioner of a motor vehicle, comprising an electric motor and a motor control device for activating the electric motor. According to the invention, the motor control device can be adjusted according to a characteristic curve ( | 10-27-2011 |
20130004148 | ELECTRIC MOTOR HAVING A PULSE WIDTH MODULATOR - The invention relates to an electric motor having a stator and a rotor. The electric motor also comprises a controller, wherein the controller is connected to the stator and/or rotor, and is designed for applying current to the stator and/or rotor for rotating the rotor. According to the invention, the controller comprises a pulse width modulator designed for controlling a power output of the electric motor, in order to generate a predetermined number of different current application patterns. The current application patterns each represent a power output of the electric motor, and preferably comprise a time sequence of current pulses, each having a current pulse duration. The controller is designed for applying current to the electric motor according to at least two different current application patterns for actuating the electric motor during a time interval of actuation, such that a power output of the electric motor in the time-based average of the time interval of actuation, in particular from the beginning to the end of the time interval, is different from the power outputs represented by the current application patterns in the time interval of actuation. | 01-03-2013 |
20130057187 | METHOD AND DEVICE FOR DETECTING BLOCKING OR SLUGGISHNESS OF A DC MOTOR - The invention relates to a method for detecting blocking or sluggishness (M | 03-07-2013 |